2 layers25.4 × 30.5 mm
Uniclogs latching relay driver
uniclogs/uniclogs-hardware
University Class Open Ground Station Hardware
7 parts32GPL-3.0
2 layers140.7 × 86.5 mm
UPD board
uniclogs/uniclogs-hardware32University Class Open Ground Station Hardware
- Size
- 140.7 × 86.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 185
- Nets
- 195
- Pads
- 776
- Tracks, vias
- 1,858, 726
- Pours
- 41
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 10 Aug 2017
- Updated
- 1 Mar 2026
Overview
UPD board is an open-source printed circuit board by uniclogs, from the uniclogs/uniclogs-hardware repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 140.7 × 86.5 mm with 185 parts on 195 nets, routed with 1,858 tracks and 726 vias.
It is built around the TC4427EOA, ADS1115IDGS and MAX7310ATE+T, with the RAVF164DJT10K0, SUD50P08-25L-E3 and WLBD2012HCU310TH among its other parts. Its parts include 28 capacitors, 28 resistors, 27 diodes, 22 transistors and 15 ICs.
Main components
6
TC4427EOA
SOIC-8-40℃~+85℃ 1.5A 1.5A 19ns 19ns 2 2.4V 4.5V~18V 400uA 800mV MOSFET SOIC-8 Gate Drivers ROHSMicrochip TechnologyGate Drivers
ADS1115IDGS
MSOP10Ultra-Small, Low-Power, 4 Channels 16-Bit Analog-to-Digital Converter with Internal ReferenceTexas InstrumentsUncategorised
MAX7310ATE+T
TQFN-16-EP(4x4)Reset function、Cascading and address extension TQFN-16-EP(4x4) I/O Expanders ROHSMaxim Integrated (Analog Devices)I/O Expanders
RAVF164DJT10K0
0603x410kΩ 4 63mW 8 ±200ppm/℃ ±5% 0603x4 Resistor Networks, Arrays ROHSStackpole Electronics (SEI)Resistor Networks & Arrays
SUD50P08-25L-E3
TO-252-55℃~+175℃ 1 P-Channel 12.5A 235pF 25.2mΩ@10V 320pF 3V 4.7nF 55nC@4.5V 8.3W 80V P-Channel TO-252 MOSFETs ROHSVishay IntertechnologyMOSFETs
WLBD2012HCU310TH
08051 15mΩ 31Ω@100MHz 0805 Ferrite Beads ROHSWalsin TechnologyFerrite Beads
README
eb-ground-station/power-system/ground_station_power_board/README.mdStation Power Board
This board controls all of the switching of power to components in the ground station. It accepts it's commands through an I2C interface on the Stationd computer.
The switching is acomplished through 3 I2C GPIO device setup as 24 output bits. The bits control mosfet switches provideing both 5VDC and 12VDC circuits.
The board also has an A/D to monitor the RF Power Amplifiers output power detectors. The characteristics of this power measurement is detailed in the power amplifier testing spreadsheet unfer RF-systems.
Finally this board provides a temperature measurement of the system enclosures environment.
See further documentation in the docs folder
Parts
185| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | LED | LED_SMD:LED_0603_1608Metric | D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23, D24, D25 +8 |
| 18 | 10k | Resistor_SMD:R_Array_Convex_4x0603 | RN1, RN2, RN3, RN4, RN5, RN6, RN7, RN10, RN11, RN12, RN13, RN14, RN15, RN16, RN17, RN18 +2 |
| 17 | 0.1uf | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4, C5, C6, C7, C8, C21, C22, C23, C24, C25, C26, C27, C28 +1 |
| 12 | DMN61D8L-LVT | oresat-footprints:TSOT26-6 | Q1, Q4, Q7, Q10, Q13, Q14, Q15, Q16, Q17, Q18, Q19, Q20 |
| 12 | SolderJumper3 | oresat-footprints:SolderJumper-3_P1.3mm_Bridged12_Pad1.0x1.5mm | JP1, JP2, JP3, JP4, JP5, JP6, JP7, JP8, JP9, JP10, JP11, JP13 |
| 10 | 10k | Resistor_SMD:R_0603_1608Metric | R9, R11, R13, R15, R17, R19, R21, R23, R24, R25 |
| 10 | SUD50P08-25L-E3 | oresat-footprints:TO-252-3_TabIsPin2 | Q2, Q3, Q5, Q6, Q8, Q9, Q11, Q12, Q21, Q22 |
| 8 | 1u | Capacitor_SMD:C_0603_1608Metric | C12, C13, C14, C15, C16, C17, C18, C19 |
| 8 | SolderJumper | oresat-footprints:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP14, JP15, JP18, JP19, JP22, JP23, JP26, JP27 |
| 8 | TC4427 | Package_SO:MSOP-8_3x3mm_P0.65mm | U8, U9, U10, U11, U12, U13, U14, U15 |
| 8 | gate | Resistor_SMD:R_0603_1608Metric | R10, R12, R14, R16, R18, R20, R22, R26 |
| 7 | 4k7 | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4, R5, R27, R28 |
| 5 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J2, J3, J4, J5, J6 |
| 5 | MountingHole | oresat-footprints:H-MCMASTER-94100A150 | H1, H2, H3, H4, H5 |
| 4 | SolderJumper-HP | oresat-footprints:JP-SOLDER-2way-HP | JP24, JP25, JP28, JP29 |
| 3 | 100u | Capacitor_SMD:CP_Elec_6.3x5.9 | C10, C11, C20 |
| 3 | MAX7310 | oresat-footprints:TSSOP-16_4.4x5mm_P0.65mm | U1, U2, U3 |
| 3 | PWR | LED_SMD:LED_0603_1608Metric | D1, D2, D3 |
| 2 | 1500 | Resistor_SMD:R_0603_1608Metric | R6, R8 |
| 2 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J1, J14 |
| 2 | FerriteBead | Capacitor_SMD:C_0805_2012Metric | FB1, FB3 |
| 2 | PI 1827486 | oresat-footprints:J_PhoenixContact_MC_1,5_8-GF-3.81_1x08_P3.81mm_45degree_ThreadedFlange | J9, J10 |
| 1 | 620 | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | ADS1115IDGS | Package_SO:TSSOP-10_3x3mm_P0.5mm | U5 |
| 1 | ADT7410TRZ | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 1 | Conn_01x05 | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J13 |
| 1 | Conn_02x02_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x02_P2.54mm_Vertical | J12 |
| 1 | Link | Resistor_SMD:R_0805_2012Metric | FB2 |
| 1 | OreSat Logo | oresat-graphics:logo-small | LOGO1 |
| 1 | PC 1720806 | oresat-footprints:PhoenixContact_GMSTBA_2,5_3-G-7,62_1x03_P7.62mm_Horizontal | J11 |
| 1 | PI 1827923 | oresat-footprints:PhoenixContact_MC_1,5_8-GF-3.81_1x08_P3.81mm_Horizontal_ThreadedFlange | J8 |
| 1 | PI 1924143 | oresat-footprints:J_PhoenixContact_MC_1,5_8-GF-5.08_1x08_P5.08mm_Horizontal_ThreadedFlange | J7 |
| 1 | UA78M33 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U6 |
| 1 | U_RasPi_40pin | Connector_IDC:IDC-Header_2x20_P2.54mm_Vertical | U7 |
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Questions
How big is the UPD board PCB?
It measures 140.7 × 86.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the UPD board use?
185 parts, built around the TC4427EOA, ADS1115IDGS, MAX7310ATE+T and RAVF164DJT10K0. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the UPD board KiCad files?
From the uniclogs/uniclogs-hardware repository on GitHub, at the commit this page was made from: the board is eb-ground-station/power-system/ground_station_power_board/UPD-board.kicad_pcb and its schematic eb-ground-station/power-system/ground_station_power_board/UPD-board.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the UPD board design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).